package com.example.tests;


import static org.hamcrest.Matchers.equalTo;
import static org.junit.Assert.assertThat;
import java.util.Random;
import org.testng.annotations.Test;
import com.example.utils.SortedListOf;


public class ContactModificationTest extends TestBase {
        
        @Test(dataProvider = "randomValidContactGenerator")
        public void modifySomeContact(ContactData contact) {
                //save old state
                SortedListOf<ContactData> oldList = app.getModel().getContacts();
                
                Random rnd = new Random();
                int index = rnd.nextInt(oldList.size()-1);
                                
                //actions
                app.getContactHelper().modifyContact(index, contact);
                //save new state
                SortedListOf<ContactData> newList = app.getModel().getContacts();
                
                //compare states
                assertThat(newList, equalTo(oldList.without(index).withAdded(contact))); 
                
        }




}